When authorized under the procedure provided for special uses in this title, the following uses will be permitted in an FP floodplain overlay district:
A. Structures used in carrying out permitted activities, provided detailed engineering data is supplied by the applicant who bears the burden of proof that such structures can be located in areas of plateaus, benches or upon manmade fills or can be otherwise elevated so as not to be affected by floodwaters, provided that:
1. Sewer and water systems shall be floodproofed and approved by the district health department or the department of health and welfare that has jurisdiction; and
2. No building or structure shall be erected and no existing building or structure shall be extended or moved unless the main floor of said building or structure is placed a minimum of one foot (1') above the elevation of the 100-year flood level. No basement floor shall be below this one foot (1') safety margin. Foundations of all structures shall be designed and constructed to withstand flood conditions at the site; and
B. Other structures used in carrying out permitted activities, provided such structures will not be subject to substantial flood damage and will not increase flood related damages on other lands. These may include structures which can be readily removed from flood hazard areas during periods of high water. (Ord. 341, 9-10-1996)